gulp-npm-test running Jest tests (all passing), but claiming to fail - npm

Question

I've installed gulp-npm-test following their documentation, that is, in my gulp directory I've got a file test.js that looks like this:
var gulp = require('gulp')
require('gulp-npm-test')(gulp)
var gulp = require('gulp-npm-test')(gulp, {
withoutNpmRun: false
})
But when I run gulp test I get the output like the following:
[17:12:41] Using gulpfile ~/my-project/gulpfile.js
[17:12:41] Starting 'test'...
> my-project#0.0.1 test /Users/wogsland/my-project
> jest
PASS frontend/tests/components/atoms/InputText.test.js
.
.
(many more Jest test passes, no fails)
.
.
FAIL gulp/tasks/test.js
● Test suite failed to run
Your test suite must contain at least one test.
at onResult (node_modules/jest/node_modules/jest-cli/build/TestRunner.js:192:18)
Test Suites: 1 failed, 135 passed, 136 total
Tests: 135 passed, 135 total
Snapshots: 209 passed, 209 total
Time: 92.237s
Ran all test suites.
npm ERR! Test failed. See above for more details.
What am I missing here? I've go a bunch of tests

Answer 1

Looks like the matcher that figures out which files are tests, matches everything that includes in the filename test.js. The default is [ '**/__tests__/**/*.js?(x)', '**/?(*.)(spec|test).js?(x)' ]. So either adapt this one, its testMatch in your jest settings. Or use testPathIgnorePatterns to exclude the /gulp folder.